It is not bullshit to claim the PT was made to be seen after the original trilogy. It is pure fact that they were made to be seen before the original trilogy.
The issue here lies in the fact that the PT was so poorly done, so little attention was paid to details and to making it mesh with the other three films, that they simply do not work.
Whatever evidence someone can give for them being halfway decent films, whatever arguments can be made about some fans being too harsh and not giving them the chance, the fact remains that they simply do not work as intended. You can't even argue with this. Anyone who claims they work and mesh just fine with the IV, V, and VI are turning a blind eye to the reality of the situation.
Shoddy workmanship. Plain and simple. The PT might as well have the label: "Made in China" stamped on them. They are dollar store quality, at best.